George l



(No Model.)

G. L. GOODRIOH.

REGULATOR FOR CLOCKS.

No 332,891. Patented Dec. 22, 1885.-

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UNITED STATES PATENT OEEicE.

GEORGE L. GOODRICH, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE E.

' INGRAHAM COMPANY, OF SAME PLACE.

REGULATOR FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 332.891, dated December 22, 1885.

Application filed June 30, 1884.

T aZZ whom it may concern.-

Be it known that I, GEORGE L. GOODRIOH, residing at Bristol, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Regulators for Clocks; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in that class of regulators for pendulum-clocks which operate through the spring end of the pendulumrod, the object being to produce a regulating device of this description which shall be simple and cheap in construction, easy to operate, and adapted to effect a very delicate and close regulation of the clock.

With these ends in view my invention c0n- 2o sists in certain details of construction and combinations of parts as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in frontelevation of the dial of a clock to which my invention has been applied. Fig. 2 is a view in perspective of the front plate of the movement, showing one form which my improved regulating device may assume; and Fig. 3 is a view showing the said plate and 0 the dial in vertical section and the regulating device in side elevation.

As has been stated, my regulating device operates upon the principle of varying the operating length of the pendulum'rod through 5 its spring end.

In carrying out this principle of operation I employ a screw, A, having a milled disk, B, secured to it for operating a device connect ing with the spring end U of the pendulumo rod D. As herein shown, the said screw is journaled in and depends from the arm E of a bracket, F, removably secured to the front plate, G, of the clock-movement by a screw, H. The milled disk, which, as described, is

5 secured to the said screw, is arranged to have its edge extend through an elongated slot, I, formed in the dial J, and located above the aperture K, formed therein, to receive the center-shaft of the clock-movement. The screw is connected with the spring end of the pend- Serial No. 136,423.

(No model.)

ulum-rod by means of a plate, L, which is provided with a slotted arm, M, from which the rod is suspended, and with a tapped arm, N, which receives the screw. In virtue of this construction and arrangement of parts the plate will be adjusted for raising and lowcring the rod, and hence varying its operat ing length and the rate of its vibration by any movement of the screw to the right or left effected through the milled disk, which is operated by the tingers from the exposed face of the dial. The plate is steadied and guided in its adjustments by means of a pillar, O, secured to it, and having its upper and lower ends respectively journaled in a shoulder, P, and an arm, Q, formed integral with the bracket aforesaid. The spring end of the rod passes through a split stud, It, secured to the front plate of the movement, and forming the virtual point of suspension for the rod. It is to be noted that the entire weight of the pendulum is borne by the plate, which is thus held down in place to receive the slightest impulse imparted to the screw by the move ment of the milled disk. It is to be noted also that the greatest impulse that can be imparted to the screw at any one movement of the disk is very slight. This enables the clock to be closely and delicately regulated by an operation not in itself delicate.

It is apparent that the devices for connecting the screw and the spring end of the rod and for mounting the screw are susceptible of modification, looking both to changes in the construction and arrangement of parts and to their adaptation to meet the requirements of different styles of pendulum-clocks. Itis also apparent that the arrangement herein shown may be reversed by suspending the rod from a fixed point and passing its spring end through the slotted arm of the adj ustable plate. It is further apparent that the disk may be arranged in a vertical rather than a horizontal position in the dial. I would therefore have it understood that I do not limit myself to the exact construction shown and described, but hold myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what no I claim as new, and desire to secureby Letters dial provided with an opening inaits-face, a

Patent, is I 1. In a regulator for pendulum-clocks, a dial provided with an opening in its face, a screw, a milled disk operated through the opening in the dial for turning the screw, and devices operated by the screw for changing the Vibratory length of the pendulum, substantially as set forth.

2. In a regulator for pendulum-clocks, a screw, a milled disk for turning it, a dial provided with an elongated slot through which the edge of the disk projects, and a device connecting the pendulum and screw, substantially as set forth.

-3. In a regulator forpendulum clocks, a screw, a milled disk for turning it, a bracket having the screw mounted in and depending from it, and a device connecting the pendulum and screw, substantially as set forth.

4. In a regulator for pendulum-clocks, a

screw, a milled disk operated through the opening in the dial for turning the screw, and devices operated by the screw for raising and lowering the pendulum, substantially as set forth.

5. In a regulator for pendulum-clocks, a

nesses.

GEORGE L. GOODRIGH; Vitnesses:

NOBLEE. PIERCE, HERVEY E. WAY. 

